Question about GE Microwave Ovens

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WHat part number for this GW Microwave oven thermostat?

I found a thermostat of my GE microwave oven JVM1430WD002 fails. Back of its reads in 3 lines:
KSD1
NR2
120/
I don't know its part number. The diagram from GE does not help much. and I found on Sears PartDirect.com 4 thermostats for that paricular GE Microwave model.
WB27X10194, WB27X10195, WB27X10166, WB27X1127

Please help me to identify which part number it is.

Thanks,

Tan Nguyen

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  • 9,098 Answers

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

WHat part number for this GW Microwave oven thermo - dee77f7.jpg

It will tell you where each one is located and what it's called, and should have the part numbers.

Three of them should read normally closed and one should read open.

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

If you still need help, let us know.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Jul 05, 2009

  • PCRE Dec 29, 2010

    KSD1 is an thermo switch.
    The first number is the temp for open the contact.(120)
    The second number is the temp to close the contact.(0)
    To test it you have to cool down the KSD1 to/under 0°C.
    Leave it for round about 10-15min. Than test the switch.
    Best regards,
    PCRE

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1 Answer

Microwave dead


JVM1790SK - May 27, 2017

The first thing to do is be sure your outlet works and works "under load." The best way to test it under load is with a toaster or hair dryer.

You can also try powering the microwave from another outlet via long extension cord, but only for testing.

If the outlet is good, then the problem will be inside the microwave.

First unplug the oven. Then see my video here which shows you how to remove the grille and controller assembly on most over the range models.

If you have any trouble getting the grille off once the screws are removed, slide the hood vent grille to the left about 1/4", then then pull it forward. On some models there are L-shaped clips that fit into a slot to hold bottom of the vent.

There should be a technical sheet (hidden inside the unit behind the control panel or hidden on the left side behind the grille) which is very helpful when troubleshooting, testing, and locating components.

There were two versions of this model. The second version has more thermostats ("TSTAT" in the technical sheet).

Both version have a 20A fuse on the filter board, a magnetron thermostat (MAG TSTAT), and an oven thermostat (OVEN TSTAT).

To check the oven thermostat, you may need to remove the oven from the wall, in which case you should refer to your installation instructions. It and your owner's manual can be found online here.

If you have a version 2 model, it will also have a heater thermostat (HTR TSTAT), and a bottom thermostat (BOTTOM STAT).

When checking the thermostats, measure with a continuity checker or multimeter or ohmmeter. The fuse and all thermostats should read "closed" or near zero ohms.

(Ignore the "HOOD TCO" which will have thinner, more colorful wires. It will read open, and that is normal. If it fails, it shorts, and then the hood fan stays on all the time.)

You can order GE microwave parts here.

FixYa doesn't notify me when there's a response, so if you have other questions, please contact me directly.

- William E. Miller, AS-EET
pupista@gmail.com
http://www.microwavecontrol.com
Microwave Oven Control Panel Repair Nationwide
"Recycling by repairing since 1982"

May 26, 2017 | GE JVM1790SK Convection/Microwave Oven

1 Answer

GE over range microwave JVM1870SK03 stops working approximately 3-4 minutes into heating cycle


<--- I'm happy to help you. Yes, it's overheating and the magnetron's thermostat is opening to protect the magnetron until it cools, then it turns power back on.

It could be due to a failed or unpowered cooling fan motor. Have your cooktop lights gone out recently?

When a cooktop bulb goes out, a surge may occur if the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

The lights can can be inoperable or stuck on or stuck in "night light" mode. Sometimes this will similarly affect the fan operation or inside light, too.

I repair boards in such cases.

It may instead be a dirty filter.

If the unit is set to recirculate, it will use a charcoal filter, which should be replaced every 6-12 months.

If it's not set to recirculate, then the grease filter may just need to be washed.

Or your ductwork may be blocked by an animal nest or debris. The entire duct and the outside vent / flap must be clear.

You can download GE owner's manuals and installation instructions here.

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

Dec 20, 2013 | GE JVM1870 Microwave Oven

1 Answer

I have model # JVM1430WD002. Both the under light & ventilation fan are not working. When I press the button, I can hear a click but nothing comes on.


Sounds to me like you main control board is failing. The relays on the board that control the light and fan are closing but the points in the relay are probably burnt and not making contact. You will probably need to replace the main control board. Hope that helps.

Aug 29, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Everything works on my ge jvm2070 microwave oven but it will not heat anything up


If everything works, but the microwave oven does not heat, this is commonly caused by a failed magnetron. The magnetron is the heart of the microwave oven and produces the RF energy that is required to heat your food. In order to replace a defective magnetron, you will need to consider the following:

1. You will need to uninstall the oven from over the range in order to replace the part (you will need to do this anyway, if you decide to buy a replacement oven).



2. Ensure the oven is UNPLUGGED before servicing anything inside the cabinet and remove the exterior case in order to access the magnetron. There are several websites that you can use that illustrate how the oven is assembled:


searspartsdirect.com
pcappliancerepair.com
appliancepartspros.com


Repairclinic.com is another great website for parts, and has part illustrations/photographs, but does not have the exploded view to show how the appliance is assembled.


NOTE: If you've never repaired an appliance on your own before, a microwave oven is usually not a recommended appliance to start with. Some models can be rather involved in taking apart.



3. The magnetron replacement cost will depend upon the MODEL NUMBER and generally costs around $100.


4. Some model microwave ovens have a thermal cut-out (TCO) associated with the magentron circuit, and/or oven cavity. If these small thermostats trip, they usually render the ENTIRE oven inoperable. The lights would not work and the carousel would not turn. You will need to remove the thermostat from the oven (if equipped) and take a resistance check across the component terminals to determine if it is good or not. A low resistance reading indicates a good thermostat. An infinite reading, indicates a blown thermostat and needs to be replaced. The average replacement cost is about $10. I would recommend you check any fuses associated with the oven before assuming the magnetron has failed.
NOTE: In the model you have listed, here is a list of components you may want to check (refer to the parts diagrams listed at the websites provided):
Item 88 Magnetron part# WB27X10735
Item 90 Thermal Cut-Out part# WB27X10166*
Item 111 Thermostat part# WB27X10195*

*I would recommend checking the Magnetron TCO and Thermostat, first. These parts are fairly inexpensive and are more likely to cause the symptoms you're experiencing. If these components don't solve the problem, then you probably have a blown Magnetron.


Use your appliance model number and review the parts illustrations at the recommended websites to identify and locate parts, and to see if this is something that you may be able easily take apart and reassemble.



If you have any questions, please post back and let me know. I hope you find this information helpful.

May 03, 2011 | GE JVM2070 Microwave Oven

1 Answer

My microwave suddenly stopped heating. . .what could be the problem?


If everything works, but the microwave oven does not heat, this is commonly caused by a failed magnetron. The magnetron is essentially, the heart of the oven that produces the RF energy that is used to heat your food. In order to replace a defective magnetron, you will need to consider the following:

1. You will need to uninstall the oven from over the range in order to replace the part (you will need to do this anyway, if you decide to buy a replacement oven).

2. Ensure the oven is UNPLUGGED before servicing anything inside the cabinet and remove the exterior case in order to access the magnetron. There are several websites that you can use that illustrate how the oven is assembled:

searspartsdirect.com
pcappliancerepair.com appliancepartspros.com
NOTE: If you've never repaired an appliance on your own before, a microwave oven is usually not a recommended appliance to start with. Some models can be rather involved in taking apart.

3. The magnetron replacement part number for the model you have listed is WB27X10305. The average cost is about $80.
NOTE: I found the part listed for the best price at appliancepartspros.com at a cost of $76. This model also has a thermostat (bi-metal) that if tripped, will also cause the oven not to heat. The thermostat acts as a fuse if the magnetron overheats. The part number is WB27X10788. You will need to remove the thermostat from the oven and take a resistance check across the component terminals to determine if it is good or not. A low resistance reading indicates a good thermostat. An infinite reading, indicates a blown thermostat and needs to be replaced. The average replacement cost is about $10.
Review the parts illustrations at the recommended websites to see if this is something that you may be able easily take apart and reassemble.

If you have any questions, please post back and let me know. I hope you find this information helpful.

CAUTION: DO NOT operate a microwave oven with the exterior cover off. The voltage inside the High Voltage network where the magnetron is installed can exceed 3,000 volts!

Dec 01, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

When I put food in the oven, it doesnt get hot?


If everything works, but the microwave oven does not heat, this is commonly caused by a failed magnetron. The magnetron is essentially, the heart of the oven that produces the RF energy that is used to heat your food. In order to replace a defective magnetron, you will need to consider the following:

1. You will need to uninstall the oven from over the range in order to replace the part (you will need to do this anyway, if you decide to buy a replacement oven).

2. Ensure the oven is UNPLUGGED before servicing anything inside the cabinet and remove the exterior case in order to access the magnetron. There are several websites that you can use that illustrate how the oven is assembled:
searspartsdirect.com pcappliancerepair.com appliancepartspros.com
NOTE: If you've never repaired an appliance on your own before, a microwave oven is usually not a recommended appliance to start with. Some models can be rather involved in taking apart.
3, The magnetron replacement part number for the model you have listed is WB27X10305. The average cost is about $80. NOTE: I found the part listed for the best price at appliancepartspros.com at a cost of $76. This model also has a thermostat (bi-metal) that if tripped, will also cause the oven not to heat. The thermostat acts as a fuse if the magnetron overheats. The part number is WB27X10788. You will need to remove the thermostat from the oven and take a resistance check across the component terminals to determine if it is good or not. A low resistance reading indicates a good thermostat. An infinite reading, indicates a blown thermostat and needs to be replaced. The average replacement cost is about $10.
Review the parts illustrations at the recommended websites to see if this is something that you may be able easily take apart and reassemble.
If you have any questions, please post back and let me know. I hope you find this information helpful.
CAUTION: DO NOT operate a microwave oven with the exterior cover off. The voltage inside the High Voltage network where the magnetron is installed can exceed 3,000 volts!

Oct 05, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Microwave works but doesn't heat


If everything works, but the microwave oven does not heat, this is commonly caused by a failed magnetron. The magnetron is essentially, the heart of the oven that produces the RF energy that is used to heat your food.

1. You will need to uninstall the oven from over the range in order to replace the part (you will need to do this anyway, if you decide to buy a replacement oven).
2. You will need to ensure the oven is UNPLUGGED before servicing anything inside the cabinet. You will need to remove the exterior case in order to access the magnetron. There are several websites that you can use that illustrate how the oven is assembled:
searspartsdirect.com pcappliancerepair.com appliancepartspros.com
If you've never repaired an appliance on your own before, a microwave oven is usually not a recommended appliance to start with. Some models can be rather involved in taking apart.
3, The magnetron replacement part number for the model you have listed is WB27X10305. The average cost is about $80. NOTE: I found the part listed for the best price at appliancepartspros.com at a cost of $76. This model also has a thermostat (bi-metal) that if tripped, will also cause the oven not to heat. The thermostat acts as a fuse if the magnetron overheats. The part number is WB27X10788. You will need to remove the thermostat from the oven and take a resistance check across the component terminals to determine if it is good or not. A low resistance reading indicates a good thermostat. The average replacement cost is about $10.
Review the parts illustrations at the recommended websites to see if this is something that you may be able easily take apart and reassemble.
If you have any questions, please post back and let me know. I hope you find this information helpful.
CAUTION: DO NOT operate a microwave oven with the exterior cover off. The voltage inside the High Voltage network where the magnetron is installed can exceed 3,000 volts.

Sep 14, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

I have a GE over-the-range microwave model jvm1430wd002. Nothing works, not even the light nor clock. Fuse not the problem. ????? >ed


If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking TCOs or thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

So don't let that fool you.

The TCOs you need to be concerned usually with have thick black or white wires only.

If the cavity thermostat needs to be checked or replaced you'll need to pull the oven from the wall.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

You can download GE owner's manuals and installation instructions here.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead several seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

dee77f7.jpg

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

NOTE: The FixYa system is not currently notifying me when folks reply to my posts, so please contact me directly if you need more FREE help & do-it-yourself advice.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Sep 07, 2009 | General Electric Microwave Oven

1 Answer

XL1800 GE Spacemaker Microwave oven "dead"


It's not good to run ANY microwave with the oven cavity empty. The items you place inside to cook or heat up act as a "load" and help to absorb/dissipate some of the RF energy. Your microwave has several thermstats installed that will blow in an overtemp condition. If you're lucky the Magnetron is still intact and only a thermostat has failed. The thermostats are small cylindrical devices mounted near the magentron and the oven cavity. They act as fuses and must be reset if blown. Go to geappliances.com and select "Parts & Accessories". Go the bottom of the next page and type in your model number. On the Search menu page select the second menu and type in "thermostat". There will be a series of thermostats listed with helpful drawings on where to locate them. I would advise you to check these drawings first and see if you can locate the thermstats to determine if they are bad. The thermostat should read a short (or very low resistance) if it is good. The part numbers are as follows:

Duct Thermostat (Item 27) ----------WB27X10714
Plate Thermostat (Item 115) ------- WB27X10713
Bi-Metal Thermostat (Item 110)-----WB27X10788

They all cost about $15.00 a piece.

Some additional advice: Make sure you unplug the microwave before servicing. If you are not savvy when it comes to electronics, or have never worked on a microwave before, it may not be adviseable to work on this yourself. Voltage potentials inside the High Voltage section of a microwave oven (where the Magentron is located) can be dangerous. There is a large capacitor that can store a charge and can be a shock hazard.

I hope this isn't discouraging to you, I just wanted to make you aware of some of the possible hazards associated with this appliance. I hope you find information helpful, and let me know if you need further assistance.

PS The alternative if all the thermostats are good, would be to check and/or replace the magnetron. (Item 73, Part #WB27X10305 at $115.00)

Apr 24, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

2 Answers

Buzz, plastic smell and no heat


Chances are you have a magnetron that's failing. GE had a rash of "underperforming" magnetrons on these units. They replace the magnetron, stirrer and high-voltage diode at no charge for parts as long as a GE-authorized service center does the work. Sometimes the unit gets run too long in a failing state and the waveguide and chassis of the oven get damaged. The bulletin shows you where tyo check. To see if yours is covered, see this bulletin: http://www.microwavedisplay.com/ge_mw_mag_kit_bulletin.pdf Otherwise, you need to contact GE Customer Relations at 1-800-386-1215 as soon as possible and tell them your problem and they will put you in touch with a local authorized servicer.

Apr 10, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

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